Wenzhou Longsheng Stainless Steel Products Co., Ltd.

Wenzhou Longsheng Stainless Steel Products Co., Ltd., with nearly 20 years of manufacturing experience, is a professional manufacturer and exporter dedicated to stainless steel pipe fittings. Located in Wenzhou, we integrate R&D, production, testing and sales, providing reliable pipeline solutions for global customers.   We specialize in producing stainless steel elbows, tees, crosses, reducers, flanges, caps, laps and seamless pipes. Our products cover DN10-DN1200, including seamless, welded, long-radius, short-radius and 180° U-shaped types, and support customized non-standard fittings. Materials include 304, 304L, 321, 316, 316L, 317L, 310S, fully complying with ASTM B16.9/B16.5, GB/T12459, GB/T13401, SH3408, DIN, JIS and other international standards.   Equipped with automatic forming machines, electric heat treatment furnaces, intelligent temperature control, shot blasting and pickling-passivation lines, we conduct strict quality control via spectrum analysis, X-ray, ultrasoni…